Hello fellow Fossil friends.
I have what I was told is Coprolite. I've seen so much fake ones at shows that I never know what's real or what's fake
I'm member of a very well respected and major Fossil club and they said "as far as they know, it's real." I got conflicting answers. Every time I go in my fossil cabinet, I just can't tell if I picked up a dud or a genuine piece.
The details are:
Miocene epoch
Wilkes fm
Salmon Creek
Washington
Thank you for any help anyone can assist me with this

Rather than writing information about coprolite identification on multiple threads, I thought I would post information about coprolite identification here so it can be referenced in ID threads (I'm getting lazy, I know). I was also thinking it might be fun for others to post coprolites in their own collections so others can use them for comparison. So here we go:
IDENTIFYING COPROLITES: Not all rocks that look like poop have a fecal origin. Here are a few things to consider when trying to make this determination:
1. Location, Location, Location – If you haven’t guessed, the first and most important thing to consider is the location your rock was found. Don’t expect to find a coprolite unless you find it in geologic area/layer where other fossils are found. If you find things like bones, teeth and fish scales, or prehistoric tracks, you may just be in in luck.
2. Shape – While fecal matter can be rather freeform when exposed to the elements or when digestion issues arise, most coprolites are shaped like poo. As with modern extrusions, fossilized feces can be shaped like pellets, spirals, scrolls, logs, piles, etc. Their shape is dependent on shape of their producers intestinal and anal structure. Look for things like compaction folds and pinch marks.
3. Texture - Most coprolites are fine grained. If your specimen appears granular under magnification, it is most likely not a coprolite. There are some exceptions, such as marine creatures that feed on bottom sediments or coral. That is why knowing the location and geology of the area where it was discovered is so important.
4. Inclusions – Many times, coprolites will have visible inclusions. Things like fish scales, bone fragments, and teeth may not get fully digested, and can be visible on the surface. Some animals ingest stones for ballast or digestive purposes. These are known as gastroliths, and if present, are generally smooth.
5. Composition – Because herbivore scat tends to break a part and decompose rapidly, it rarely survives the fossilization process. So most fossil poo that is found is from carnivores. The reason for this is that their poo is usually high in calcium phosphate, the same mineral found in our bones. This mineral can appear in many forms. It can be hard and dense or soft and porous. If the potential coprolite appears soft and porous, there is a quick test that is often used in the field. If you touch to stone to the tip of your tongue and it sticks, chances are, it is high in calcium phosphate and could be a coprolite. If you are not that brave, you can also touch it with wet fingers to see if it feels sticky, but this is not nearly as fun. If the calcium phosphate takes a harder, denser form the “lick test” won’t work. In some instances, chemical analysis is required to definitively identify the mineral composition.
@Carl do you have anything you want to add?

Attached pictures are of a stone I discovered in our garden after receiving a load of landscape rock, believe they cam from Colorado.
This particular stone is shaped like a road apple left by a horse. It is domed with a flat side like, as I said, a road apple left by a horse. Some of the surfaces are similar to a hard gray shell; while those areas where the shell has broken away are loosely packed red, black and clear crystalyn material that crumbles easily from the stone with light touch of the finger.
Any ideas?

I found this at the aurora fossil museum in north carolina. its kind of a dark caramel color. can post more pics or info if needed. thanks
it is about an inch long.
i think it is poop but i really dont know as i am just getting in to the hobby

My wife brought this out of our shed in her little work wagon today. Two of these dino poops wiegh in at about 20 to 40 pounds!!! Does anyone our there in the Fossil Forum think that these can be sold? The cost of shipping alone would be a small fortune! Just wondering. Not sure what to do with these?
RB

I believe I got this from Roger Pabian (family member) either before or after he passed away a few years ago. I have been wondering what this thing is, and hoped to maybe get some input here. It is dark brown, round, somewhat smooth (kinda bumpy), and completely round and hard as a rock. I have a picture of it here...
It reminds me of deer feces, since it is too big for a rabbit.

Hey guys, found this in a gravel bed in central Iowa and am having trouble identifying it. I had originally thought it might be a native American artifact but the members at Arrowheadology disproved that and sent me here. Any suggestions would be great. Thanks!